Scraper



J. B. KI'RK.

I SCRAPER.

APPLICATION HLED IULYZ. 1920.

Patented Mar. 15, 1921.

mmvmn WITNESSES WZKI A TTORNEYS mums PEYEIS. me; Lm1o.. WASHINGTON u L UNITED STATES JAY BUCHAN KIRK, 0F IOLA, KANSAS.

SCRAIER.

Application filed July 2, 1920.

To all whom it may concern:

lie it known that I. JAY B'UGHAN KIRK, a citizen of the United States, and a residentof Iola, in the county of Allen and the State of Kansas, have invented a new and Improved Scraper, of which the following is a full, clear, and exact description.

This invention relates to a scraping dcvice adapted to remove carbon and oth r deposited sediment from the inside of tubular pipes.

The object of this invention is to provide a cylindrical scraper which will be very effective in cutting carbon and other deposits from the inside of distilling pipes. Another object of this invention is to provide a cyl' indrical scraper which will resiliently bear against the inside surface of the distilling pipes and will readily adjust itself to any irregularities in said surface.

Reference is to be had to the accompany ing drawing formirn a part of this specifi cation. in which it is understood that the drawing illustrates only one form of the invention, and in Which- Figure 1 is a top View of the scraper.

Fig. 2 is a sectional view through the scraper on the line 2-2 of Fig. 1.

Referring to the accompanying drawing by numerals, 10 indicates a collar which may be secured to any reciprocating means. A plurality of radiating spokes 11 are formed on said collar, the outer ends of said spokes being formed integral on a cylindrical scraper 12. The inside of each end of said cylinder 12 is provided with bevels 13 so arranged as to form sharp edges or knives 14 at each end of the cylinder which bear directly on the inside surface of the distilling pipes. Between the bevels 13 the outside surface of the cylinder 12 is provided with an offset section 15 so constructed Specification of Letters Patent.

Patented Ma1'.15, 1921.

Serial No. 393,516. b

that sharp edges or knives 16 are formed Which also hear againstthe inside surface of the distilling pipes and cut away any deposit as said scraper is reciprocated in said pipe.

Wardly against the inside Wall of the pipe and to conform with any slight irregularity in said pipe as said scraper is reciprocated, I provide radial slots 17 in each end of the cylinder 12 parallel to the axis of said cyl cylinder into sectors or arcuate'sections. The'slots 17 are alternated at each end of the cylinder 12 so that the unscraped part left by the slots 17 on one end of the scraper In order to cause the scraper to press out- I inder, said slots dividing each end of the will be scraped by the sectors on the other end of said cylinder. The cylinder ,12 preterably has a diameter greater than the di aineter 0f the pipe which it fits so that the segments must be slightly sprung inwardly in order to insert said cylinder in the pipe and the scraper is made of a resilient mate rial for this purpose.

I would state in conclusion that While the V illustrated example constitutcs'a practical embodiment of my invention, I do not limit myself precisely to the details herein described, since, manifestly, the same can; be considerably varied Without departing from the spirit oi the invention as defined in the appended claim. 7

Having thus described my invention, I claim asnew and desire to secure by Letters Patent:

A tube cleaner com )nisin a c linder-Witlr 

